Lesson: Ionizing RadiationPhysics
In this lesson, we will learn how to relate the interactions of types of ionizing radiation to their absorption by thicknesses of different density materials.
Sample Question Videos
One half the -rays from a sample are absorbed by a 0.170-mm-thick lead shielding layer. Half of the -rays that pass through the first layer of lead are absorbed in a second layer of equal thickness. What thickness of lead will absorb all but one in 1,000 of these -rays?
A sodium iodide crystal of thickness 2.00 cm absorbs all but of rays from a radioactive source. What percentage of rays will not be absorbed by 4.00 cm thickness of the same material?
What is the dose in millisieverts for a 0.1 Gy X-ray?